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Finding the Fourth Proportional to 402,904.92, 606,756 and 350,941.80

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Solution

The fourth proportional to 402,904.92, 606,756 and 350,941.80 is: 528,501.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,904.92 : 606,756 = 350,941.80 : x
  2. Step 2: Convert to fraction form
    402,904.92/606,756 = 350,941.80/x
  3. Step 3: Cross multiply
    402,904.92x = 606,756 × 350,941.80
  4. Step 4: Simplify right side
    402,904.92x = 212,936,042,800.80
  5. Step 5: Solve for x
    x = 212,936,042,800.80/402,904.92
  6. Step 6: Final answer
    x = 528,501.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.